generation of catalytic spliceosome for first transesterification step

id: GO:0000349
name: generation of catalytic spliceosome for first transesterification step
namespace: biological_process
type: go
obsolete: False

Description: Formation of a catalytic spliceosome complex ready to perform the first splicing reaction. This occurs by an ATP-dependent conformational change of the pre-catalytic spliceosome.

Parent Functions